Internal combustion engine



April 23. 1940. w AQSHWE|GER 2,198,130

INTERNAL COMBUSTION ENGINE Filed Nov. 29, 1937 3 Sheets-Sheet 1 r INVENTOR. WALTER .SGHWEIGEA.

ATTORNEYS M 0- w. A. SCHWE lGER 2.198.130

INTERNAL COMBUSTION ENGINE INVENTOR. WHLTEH a. SCHM/EIEER.

ATTORNEYS.

w. A. SCHWEIGER INTERNAL COMBUSTION ENGINE Filed Nov. 29, 1937 INVENTOR LTER H. CHI/YEIGER.

3 Sheets-Sheet 3:

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ATTORNEYS.

Patented Apr. 23, 1940 UNITED STATES PATENT OFFICE 2,198,130 murmur. comsu'snon mama Walter a. schweiger, La Crosse, wet. Application November 29, 1931, Serial No.'1"l'l,13il 1 claim; (01. 123-13) The present invention relates to improvements in internal combustion engines of rotary type, and consists broadly of a rotor geared to a plurality of rotary abutments capable of timing the compressing, firing and the exhausting of the gases therefrom.

The principal object of the invention is to provide a rotary motorhavinga rotor and a plurality of rotary abutments geared to said rotor, which rotor embodies opposed arcuate segments or blocks utilizing a continuous displacement principle, by the displacement of their sizeas they pass from one chamberto the next of the engine, thus avoiding the necessity of using piston seals as'in other types of engines. Another object of the invention is the provision of an engine of this character that due to the displacement principle, the rotary abutments are not required to and do not contact the blocks of the rotor. Therefore, complications at these points are avoided thus allowing said abutments to turn freely regardless of the'forces against them, and thus in a great measure reducing wear' and noise in the operation of these parts; 25 A further object of the invention is the provision of an internal combustion engine of rotary type which employs. a rotor, having-opposed "blocks, one of which is closed and the other provided with by-pass chambers. the closed block continually producing compression in front and continuously passing behind it due to'the' displacement principle set forth.

A still further object of theinvention is to provide a rotary engine in whichthe intake and the exhaust utilizes the principle'of passing the fuel and the exhaustedgases through the housing and into the rotor and blocks, thus as the combustion charges continually follow the rotor block or blocks, no ignition is necessary after the engine is once started, whereby the intake of "fuel is greatly aided by centrifugal force and the exhausted fuel is forced out-by said block or blocks of the rotor.

passes the block of the rotor to therear thereof and will be continually fed by the compressed charges passing the same, time as the compressed charges continually follow the rotor block or 50 blocks no ignition is necessary after the engine is once started.

Other objects and advantages will be apparent during the course of the following description. In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same, Fig. 1 is a'front elevation of the motor with 90 the front plate removed from housing,'and

engine comprises a casing or housing 8' having An additional object of the invention to provide a rotary engine inwhich the combustion chamber a. Haunted in these abutment chamdisclosing the rotor and rotary abutments geared to the rotor for synchronized movement: I

Fig; 2 is an enlarged plan section of the rotor,

showing the by-passes formed in one block thereof, the section being indicated by the line "5 2-4 in Fig. 6; I

Fig. 3 is a greatly enlarged vertical section of the engine, showing the various 'coactingparts thereof, the section being indicated by the line 3-3 in Fig. 1; 10

Fig. 4 is a. tic view illustrating an advanced position of the rotor to that shown in Fig. 1;

Fig. 5 is a view similar to Fig. 4, showing the rotor and associated abutments in a still further 15 advanced position to that shown in Fig. 4; and Fig, 6 is a detail partly in section of the rotor perse, and further illustrating the by-pas's section of the fuel intake and exhaust block of'said rotor.

In the accompanying drawings, I have shown the preferred form of my invention as applied to a rotary engine, however, I wish it understood that the principle may be readily applied to meters and pumps, as the continuous displace ment of the rotor blocks produces a constant and invarying intake. and exhaust action throughout the entire revolution of the rotor, thus providing a perfect even flow-of substance in a pump or meter as well as a perfectly even flow in a power unit. When utilized as a meter, the continuous displacement of the piston blocks of the device offers a positive and thus an ac curate measurement of fluids, while at the same time it turns freely due to the intake and the exhaust chambers being arranged on opposed sides of the rotor blocks,

Referring in particular to the drawings, and especially to Figs. 1 and 2 thereof, the improved acentrall'y disposedrotorchamberiandarotor' ll mounted therein (in a shaft ll, said rotor shaft ll being mounted in suitable-anti-friction arin s l2 and I! carried by the housing sections I, as clearlydisclosed in Fig. 3.

The housing I ,is also provided about its periphery with aplurality of abutment chambers I4, I! and I6 communicating with the rotor hers is a plurality of rotatable substantially semi-circular disk-like abutments J1," II and I9,

respectively, mounted upon shafts 20, 2] and 22, which shafts are mounted in suitable antifrictionbeari ss 23 and 24. a

The rotor I0 is geared to the rotatable abutments I1, I. and II by means of main driving gears 25 rotatable with said rotor and meshing with gem-in, :1 and 20 carried, respectively, by

the shafts", 2i, and 22, whereby the movement of said abutments is synchronized with the rotary movement of the rotor l0.

The rotor shaft II is keyed to the by means of a plurality of keys 29, and said shaft is mounted in suitable bearings and 3| carried by the housing 9, said shaft being sealed at one end by means of a packing gland 32 carried by the housing and at its opposite end by means of a cap member 33.

The rotor I0 is provided with concentric channels 34 and 35 positioned in opposite-faces thereof, and these channels communicate, respectively, with the exhaust line 36 and the fuel intake line 31, through the medium of ports. (See Fig. 3.) The rotor is also provided with diametrically opposed hollow blocks or heads 39 and 39, the head 38 being provided with chambers 40 and 4| communicating, respectively, attheir inner ends, with the channels 34 and 35, and having. their outer ends and sides closed, but open to the rotor chamber 9, along the edge portions of the head, the opening of the chamber 40 being along one edge portion, while the opening of the chamber disclosed in Figs. 2 and 6,-and said chambers 40 and 4| are separated by means of a diagonally disposed partition 42!. The block or head 39 may also be provided with these intake and exhaust chambers, if desired.

As disclosed in Fig. 1 .of the drawings, the rotor chamber 9 consists of a series of chambers 43, 44 and 45 in which intake, exhaust, firing and compression cycles take place. In the position shown, the abutment chamber l4 has just been exhausted and is about to start taking in an exposition. The rotor chamber 43 is taking a mixture of gasand air, and the rotor chamber 44 is shown with a charge of gastherein and a charge from. The abutment chamber I5 is filled with an expanded charge ready for exhaust anda charge is being fired in the pocket formed be-- tween the rotor block 39 and the abutment It.

block 38 of the rotor is indicated inan advanced stage of its continuous intakeand exhaust cycles firing stroke in chamber 45. The remainingcompressed mixture in front of said block 39 has passed into the chamber formed bythe rotary abutment l9 and is being compressed along with the mixture already existing in this chamber. A small portion of t mixture will pass into the they are in that'position momentarily, as will be apparent, and the gap, as well as the gap shown between the block 33and'the abutment I I, will exist Qnly for an instant, while the engine is rimning:

In 'the diagrammatic view shown in Fig. 5, the rotor block 38 is indicated in another stage of its continuous intakeand exhaust cycles, and

but in a' position to close rotor sleeve ately open into 4 thus adding to the explosion of the firing charge 4| is along the opposite edge portion, as clearly plosive charge of air andgas, which is in neutral ofexpanded gas ready to be exhausted there- In the diagrammatic view shown in Fig. 4, the I and the block 39 -.is in the central stage of its next chamber 43 hrough the gap formed be--- tween, the abutment l9 and the block 39, as" shown by the arrow, when the block 39 and ab'ut- .ment I9 are in the position shown. However,

said block 39 is still shown in its firing stroke, the chamber [6 of the abutment l9, and has begun its compression stroke in chamber 43. High compression now exists in the closed chamber of the rotary abutment l9 and the latter chamber will immedithe present firing chamber 45,

in said chamber, 45. In this connection it will be noted that the rotary abutment discs l1, l8 and 19 act as abutments to produce the same results .as cylinder heads of a reciprocating engine, but allow the blocks 38 and 39 of the rotor to pass through the cut-outv sections thereof when all parts are in synchronized motion by means of master gear25 and the gears 26, 21 and 28 meshing therewith. 1

The cycles above described continue as the rotor is rotated and the intake charges enter the channel 35, from the intake line 3'l and the exhaust is carried out from the outlet channel 34 through the exhaust line 36, as clearly shown in Figure 3. v

A spark plug 46 is mounted in the housing and projects into the chamber 45 to start the engine, however, as soon as the rotor has received a few impulses from the exploding gases this may be dispensed with, as hereinbefore explained.

It.wi1l, therefore, be obvious from the foregoing description that I have produced an engine of rotary type that embodies comparatively few working parts, that is positive in its action and that does not require packing rings or spring controlled elements in its operation, thus making an engine of this character very economical to manufacture and assemble and adding greatly ,I

to the life thereof.

It is to, be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes relative to the material, size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined'claim.

Having thus described my invention, I claim:

A rotary engine comprising a housing having a centrally disposed chamber therein and chambers disposed circumferentially about the central chamber and communicating therewith, said housing provided with intake and exhaust ports opening into the central chamber, a rotor within the central chamber and having annular channels'therein, one on each side face and communicating respectively with the intake and exhaust ports. diametrically opposite hollow heads integral with the rotor, a partition for. at least one head and, disposed diagonally therein to provide an intake chamber and anexhaust chamber having open inner ends communicating respectively with the intake and exhaust channels, said intake and exhaust chambers having closed outer the opening of the exhaustchamber disposed along the opposite edge portion, substantially semi-circular disk-like abutments within the circumferentially arranged chambers and geared to the rotor for synchronized rotation thereof,- and the rotor and abutments being so constructed and arranged with respect to each other that the abutments will be engaged with the rotor between the heads-at certain times and the heads are spaced from the abutments at all times. I 

